This parliament has shown what happens when you leave too many MPs unoccupied.

Maybe it’s the logical result of being in coalition, or maybe it’s a sign of David Cameron’s diminishing authority, but the Conservatives' class of 2010 has helped keep this parliament lively and unpredictable. It’s also provided us with a lot of fun. The government can’t seem to do anything without the rebels emerging from the shadows.

Fierce euroscepticism, of course, explains some of their behaviour, with Europe causing hyperactivity like no other issue. But could there be another, unspoken, simpler reason?

According to the Economist’s Bagehot, many of the 2010 intake feel neglected and underused. Overlooked for promotion, partly due to the constraints of coalition, they’ve been left with little to do, except to be a nuisance, with Europe the obvious cause to take their frustrations out on.

"The 2010 Tory intake was among the biggest in parliamentary history and excited high hopes. Its members were diverse and included high-flyers from business and academia.

"There was talk of such talents reinvigorating Tory policy, bolstering David Cameron’s standing within his party and restoring trust in politicians. Many began vigorously, starting research groups, joining select committees and blogging and tweeting like anything. But now they are stuck.

"Only a few of the new crop have been given junior ministerial jobs: mostly those—such as Nick Boles and Matthew Hancock—with long-standing ties to Mr Cameron and his coterie. Far from bolstering the prime minister’s authority, the rest have proved exceptionally mutinous.

"Overlooked for promotion, and in the rebels’ case unofficially barred, many of the brightest 2010ers are now demoralised."

A report out this week by Nottingham University revealed that of the 148 Conservatives who have voted against the Prime Minister since the general election, 90, or 85 per cent, have come from the 2010 cohort.

Independent-minded MPs, those without a "filter", as Nadine Dorries would put it, are a refreshing and much-needed change from the clones we were subjected to under the last government. Who wants to hear MP after MP trotting out the party line, when listening to someone off-message is far more enjoyable?

Tim Montgomerie has argued that the class of 2010 could end up being Cameron’s greatest legacy to his party, combining the best of popular and compassionate conservatism. But it’s their route into parliament that gives us another reason to explain their tetchiness. Montgomerie notes that many are seasoned campaigners: "One of the other strengths of the 2010 intake is that many have fought two or three elections to win their seats – often emulating the best of the Liberal Democrats’ pavement style of politics."

Anyone fattened up on a diet of Blairite/Brownite control-freakery could be forgiven for thinking that politics has entered a different era. And in some respects it has. With little chance of ministerial positions, and the odds firmly stacked against a Conservative majority in two years’ time, what is there to lose? Best go out with a bang some might be thinking. At least if a large chunk of the current crop lose their seats, they can hold their heads high and say they did things their way.

But "benign neglect" is no way to treat backbenchers, cautions Bagehot. The system is broke and needs fixing. Parliament will have to adapt to accommodate future new blood:

"Party bosses are going to have to find backbenchers more meaningful employment. This might involve, for example, beefing up the powers of the select committees to summon witnesses, or encouraging the currently gentle bill committees to give legislation real critical scrutiny. They will also have to adopt a more conciliatory approach to whipping, making it less an exercise in carpeting than in constructive career advice."

This parliament has already shown what happens when you leave too many MPs unoccupied. Rebelling becomes their only taste of power.